5661090126 has 12 divisors (see below), whose sum is σ = 12265695312. Its totient is φ = 1887030036.

The previous prime is 5661090103. The next prime is 5661090133. The reversal of 5661090126 is 6210901665.

5661090126 is a `hidden beast` number, since 566 + 1 + 0 + 90 + 1 + 2 + 6 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 157252486 + ... + 157252521.

It is an arithmetic number, because the mean of its divisors is an integer number (1022141276).

Almost surely, 2^5661090126 is an apocalyptic number.

5661090126 is an abundant number, since it is smaller than the sum of its proper divisors (6604605186).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5661090126 is a wasteful number, since it uses less digits than its factorization.

5661090126 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 314505015 (or 314505012 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 36.

The square root of 5661090126 is about 75240.2161480149. The cubic root of 5661090126 is about 1782.2420644840.

The spelling of 5661090126 in words is "five billion, six hundred sixty-one million, ninety thousand, one hundred twenty-six".